Drivers side cold air, Passenger side HOT air
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 10 of 10
Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Drivers side cold air, Passenger side HOT air in Past Cadillac Vehicle Discussion; I have a 2005 deville and no matter what settings I choose I end up with hot air coming out ...
  1. #1
    TURBO2 is offline Cadillac Owners Member
    Automobile(s): 2005 Cadillac Deville
    Join Date
    May 2011
    Posts
    14

    Drivers side cold air, Passenger side HOT air

    I have a 2005 deville and no matter what settings I choose I end up with hot air coming out the passenger side vents. I have tried turning the passenger side to full colder and off and it makes no difference. I read for earlier years it might be the actuator valve. Is it the same for 2005 Cadillacs or is it something else?
    Also, if it is the valve where is it located?
    Thanks in advance,
    Curt

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    41,499

    Re: Drivers side cold air, Passenger side HOT air

    If the 2005 still has built-in diagnostic code capability, use the sticky post ^^^ "How to pull codes" to find out if there's a stuck HVAC air door or actuator fault. If your car does not have the onboard feature, any large parts chain store can pull codes for you.

    My guess is either a bad diverter door actuator or a marginally undercharged HVAC system.

    Not "valves" - actual swing doors operated by stepper actuator motors.

  4. #3
    TURBO2 is offline Cadillac Owners Member
    Automobile(s): 2005 Cadillac Deville
    Join Date
    May 2011
    Posts
    14

    Re: Drivers side cold air, Passenger side HOT air

    I came up with a BO419 (air mix door #2 range error) & BO429 (Temp control #3 rear circuit range/performance)

    I also found U1000 ( Class 2 Communication malfunction)

  5. #4
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 02 DHS, 03 SLS
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    62
    Posts
    8,408

    Re: Drivers side cold air, Passenger side HOT air

    Quote Originally Posted by TURBO2 View Post
    I came up with a BO419 (air mix door #2 range error) & BO429 (Temp control #3 rear circuit range/performance)

    I also found U1000 ( Class 2 Communication malfunction)
    ----------------------------------
    I came up with a BO419 (air mix door #2 range error)
    the #2 actuator IS the one
    that controls the temperature of the passengers side -
    it needs to be replaced -

    do a search for "replace mix door actuator" -
    or "replace blend door actuator" -

    there are 3 of them - under the dash -
    remove the glove box - and the hush panels to gain access -

    BO429 (Temp control #3 rear circuit range/performance)
    a very common code relating to the rear seat temperature controller -
    basically - it is saying the rear seat temperature setting
    doesn't match the controller setting -

    just turn off the rear seat control off - and ignore it -

    I also found U1000 -
    also VERY VERY common -
    "U" codes are data line - communication codes -
    they come and go regularly -
    they can just be ignored -

  6. #5
    TURBO2 is offline Cadillac Owners Member
    Automobile(s): 2005 Cadillac Deville
    Join Date
    May 2011
    Posts
    14

    Re: Drivers side cold air, Passenger side HOT air

    I did a search and all that came up was a link to this site for the older Eldorados.

  7. #6
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with floor shift)
    Join Date
    Jun 2004
    Location
    Woodstock Ill.
    Age
    66
    Posts
    70,289

    Re: Drivers side cold air, Passenger side HOT air

    Number 18

    http://www.gmpartsgiant.com/Page_Pro...053&SortKey=12


    Wider view (view A lower left)


  8. #7
    TURBO2 is offline Cadillac Owners Member
    Automobile(s): 2005 Cadillac Deville
    Join Date
    May 2011
    Posts
    14

    Re: Drivers side cold air, Passenger side HOT air

    How difficult (and how much time) is it to do this job? I was going to replace all of the actuators so this wouldn't happen again to another one until I found out that they are $105.00 - $150.00 each. Also the dealer was saying it could take up to 8 hours to replace them! I didn't think that sounded right but who knows. The dealer said to replace all of them I might be looking at up to $1200.00 for the job. So now I am back to just doing the defective one and hoping I can do it myself as it will be hard for me to even come up with the money for the actuator.

  9. #8
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with floor shift)
    Join Date
    Jun 2004
    Location
    Woodstock Ill.
    Age
    66
    Posts
    70,289

    Re: Drivers side cold air, Passenger side HOT air

    If it ain't broke, don't fix it.

    Never had to do one (knock on wood).........................yet, so I am not sure how long it takes. Someone who has may chime in. There is probably a tutorial or two in the Tech Tips section.

  10. #9
    TURBO2 is offline Cadillac Owners Member
    Automobile(s): 2005 Cadillac Deville
    Join Date
    May 2011
    Posts
    14

    Re: Drivers side cold air, Passenger side HOT air

    Anyone have any experience doing this job?

  11. #10
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 02 DHS, 03 SLS
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    62
    Posts
    8,408

    Re: Drivers side cold air, Passenger side HOT air

    Quote Originally Posted by TURBO2 View Post
    Anyone have any experience doing this job?
    ---------------
    it's been discussed a million times here and in TechTips -
    search for either MIX DOOR ACTUATOR - or BLEND DOOR ACTUATOR -
    there are 3 of them -
    #1 is the left - or driver side -
    #2 is right - or passenger side -
    #3 is for the rear seat -

    the part should be around $50 -
    the amount of time it takes depends on your skill level -
    and whether or not you have the Factory Service Manual - (or AllData on-line)

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting